Library /sys$common/syshlp/lse$clihelp.hlb GOTO, FILE, Qualifiers, /MODIFY  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /MODIFY
       /NOMODIFY

    Specifies whether the buffer you create is modifiable or
    unmodifiable. If you specify the /MODIFY qualifier, the GOTO
    FILE command creates a modifiable buffer. If you specify the
    /NOMODIFY qualifier, the GOTO FILE command creates an unmodifiable
    buffer. If you do not specify either qualifier, LSE determines the
    buffer's modifiable status from the read-only/write setting. By
    default, a read-only buffer is unmodifiable and a write buffer is
    modifiable.